Improvement in water-wheels



that@ Stena dnd ditta.

Leners Patent No. 110,009, dated Beamter 13, 1870.

IMPROVEMENT lNwATER-wHEELs.

The Schedule referred to in these Letters `Patent and making part of the same.v

To all whom `it may concern Be it known thatI, DANIEL W. CASE, of Garden City, in the county of Blue Earth and State of Minnesota, have invented a new and useful Improvement in W'ater W'heels; and vI do hereby declare that thev following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the saine, reference being had to the accompanying drawing forming part of this specilicatiou.

lhis invention relates to improvements in waterwheels; and consists in the construction and arrangementof the bearing for the shaft and adjusting apparatus therefor in the top ofthe case of the wheel.

Also, in certain improvements in the construction and arrangement of .the chutes leading the water to the wheel and the gates therefor, and also in an arrangement for discharging the water from thel wheel partly through central and partly through vertical,

discharges.

Figure l is a top view', partly in plan and partly in horizontal section, of my improved wheel;

.Fig'ure 2 is a vertical transverse section, taken on the line a: :c of fig. l and Fgure 3 is a horizontal section on the line y y of Similar letters of reference indicate corresponding parts.` I make au enlargement of the hole for the shaft through the`top of the casein a projection, A, rising above the top of the case, as'shown at B, the said 'enlargement being in the form of an inverted cone,

with acylindrical prolongation, C, the wall of which is screw-threaded, for the reception of a tighteningplllug, D, the said plug having a central hole for the s ait.

The conical-shaped wall of this enlargement B of the hole is provided-with the ribs E. i

In this enlargement- I fit the wood-bearings F, which are made by irstturning up, in a lathe ou a mandrel the same size as that of the shaft, a conical block, preferably of wood, to the same size and shape as' the conical space, then sawing otl the small end, making the block smaller than the conical space, so that it may be forced down from time to time, and splitting the block longitudinally into four, six, or eight parts, as shown in lig. 3.

'.lhese blocks, thus formed and provided with grooves in the back of the ribs E, are put into the space, and

the plug -D screwed down upon them,`as shown, to

tighten them up against the' shaft. This makes a verysecure and reliable bearing, which will always center the shaft when forced down by the nut, which may be- I done from time to time, as required for tightening.

The chutes are formed by means of the permanent' rim H, arranged outside the wheel, and having the vertical tangential or nearly tangential slots I andthe blocks K attached'to the vrims L and moving back and forth with the said rims, to cause the spa-ces M between the blocks to coincide' with the slots I when lthe passages are open, or to be cut off by the parts of yform a prolongation of the -wallsd of' the slots I, and

thus the two constitute a smooth plane and continuous chute or wall thereof, for guiding the water to the periphery ofthe wheel.

.The walls e of the blocks K are concaved behind the points,to make ample space for the water to flow into the buckets as unobstructedly as possible.

'lhe rims L are turned by the pinion O and handshaft P in a way common to other wheels. In order to be able to provide buckets of considerable height, with but little breadth radially, tothrow the force ofthe water as near the .periphery as possible, and Ayet have sufficient dischargecnpacity, I propose making the passages S through the cylinder of the wheel to the central space under the top plate, for discharging .a part of the water thereat. rIhe buckets have, therefore, two discharge places, the other being at the bottom, as indicatedl at T.

Having thus 'described my invention,

.Ivclaim as new and desire to secure by Letters Patent-h 1. The arrangement of the4 buckets withthe'centrai discharges S and the vertical discharge T, all substantially as specified.

2. The wheel-shaft, the extension A of the wheelcase, the inverted conical seat or cavity B, and the blocks F and screw-.plug D, all arranged substantially as specified.

DANIEL W. CASE. Witnesses:`

It. J. MAnvis, NATHANIEL S'rEvENs.

s q/naacema aan 

